focus

中心点

焦点

中心，集中点

使集中于焦点；集中

调焦距

focus

(兴趣活动等的)中心, 焦点, 焦距, [医]病灶, [地](地震的)震源

聚焦, 注视

使集中在焦点上, 定焦点, 调焦, 集中

focus

1. the concentration of attention or energy on something; "the focus of activity shifted to molecular biology"; "he had no direction in his life"

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2. maximum clarity or distinctness of an image rendered by an optical system; "in focus"; "out of focus"

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3. maximum clarity or distinctness of an idea; "the controversy brought clearly into focus an important difference of opinion"

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4. a central point or locus of an infection in an organism; "the focus of infection"

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5. special emphasis attached to something; "the stress was more on accuracy than on speed"

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6. a point of convergence of light (or other radiation) or a point from which it diverges

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7. a fixed reference point on the concave side of a conic section

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1. direct one's attention on something; "Please focus on your studies and not on your hobbies"

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2. cause to converge on or toward a central point; "Focus the light on this image"

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3. bring into focus or alignment; to converge or cause to converge; of ideas or emotions

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4. become focussed or come into focus; "The light focused"

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5. put (an image) into focus; "Please focus the image; we cannot enjoy the movie"

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